<template>
    <div class="list" ref='wrapper'>
        <div>
             <div class="area">
            <div class="ttitle border-topbottom">当前城市</div>
            <div class="button-list">
                <div class="button-wrapper">
                    <div class="button">{{this.city}}</div>
                </div>
            </div>
        </div>
        <div class="area">
            <div class="ttitle border-topbottom">热门城市</div>
             <div class="button-list">
                <div class="button-wrapper" v-for="i of hotCities" :key="i.id"
                >
                    <div class="button"  @click="handleClickCity(i.name)">{{i.name}}</div>
                </div>
               
            </div>
        </div>
        <div class="area" v-for="(item,key) of cities" :key="key"
        :ref="key"
        >
            <div class="ttitle border-topbottom">{{key}}</div>
            <div class="item-list">
                <div class="item border-bottom"
                v-for="inneri of item"
                :key="inneri.id"
                @click="handleClickCity(inneri.name)"
                >{{inneri.name}}</div>
               
            </div>
        </div>
        </div>
    </div>
</template>
<script>
import Bscroll from 'better-scroll'
import { mapState,mapMutations } from 'vuex'
export default {
    name:'CityList',
    props:{
        hotCities:Array,
        cities:Object,
        letter:String,
    },
    computed:{
        ...mapState({
            city:'city',
        })
    },
    data(){
        return{

        }
    },
    components:{

    },
    watch:{
        letter(){
            if (this.letter) {
                const element = this.$refs[this.letter][0]
                this.scroll.scrollToElement(element)
            } 
            // console.log(this.letter);
        }
    },
    mounted(){
        this.scroll = new Bscroll(this.$refs.wrapper)
    },
    methods:{
      handleClickCity(city){//修改vuex
      this.changeCity(city)
      this.$router.push('/')
        //   this.$store.dispatch('changeCity',city)
        //   this.$store.commit('changeCity',city)
          
      },
      ...mapMutations(['changeCity'])
    }

}
</script>
<style lang="stylus" scoped>
@import '~styles/varibles.styl'
    .border-topbottom
        &:before
            border-color: #ccc
        &:after
            border-color: #ccc
    .list
        overflow hidden
        position absolute
        top 1.6rem
        left 0
        right 0
        bottom 0
        .ttitle 
            line-height .5rem
            background #eeeeee
            padding-left .2rem
            color #666
            font-size .26rem
        .button-list
            overflow hidden
            padding .1rem .6rem .1rem .1rem
            .button-wrapper
                float left
                width 33.3%
                .button
                    margin .1rem
                    padding .1rem 0
                    text-align  center
                    border .01rem solid #ccc
                    border-radius .06rem
        .item-list
            .item
                line-height .54rem
                color #666
                padding .1rem .2rem
            .border-bottom
                border-bottom .01rem solid #eee
    </style>